"All of a sudden, this girl came into class, and she's screaming that there's somebody on the third floor that was stabbed. And, it kind of freaked everybody out in class," MATC nursing student Julio Mena said.

Mena said he grabbed his medical kit.

"I'm like ready to jump up, and as soon as I'm ready, police are flying by the door, and it was just crazy. I can't believe that happened right on the third floor," Mena said.

An MATC officer handcuffed the suspect, who's a former student, within a minute of the stabbing, and the female student victim was immediately rushed to the hospital.

"The suspect did indeed know the victim. This wasn't random. It wasn't like someone just came in here and wantonly started stabbing people. This was an ongoing relationship between the suspect and the victim," Milwaukee police Lt. Ray Gibbs said.

Student Jaymar Childs said he, too, learned of the stabbing when a girl ran into class.

"She was hysterical. She was talking about how you want to go to school and be safe and stuff like that. It's a real serious situation for somebody to actually get stabbed in school. Something I've never heard of before," Childs said.

But the administration said students shouldn't be alarmed.

"The students should be assured that this campus is safe and secure, that this was an isolated incident between two students that knew each other, and our public safety team responded immediately to the situation," MATC President Michael Burke said.

At last report, the victim was in critical condition with multiple stab wounds.

Many students who were inside the building at the time told WISN 12 News they didn't even know about the stabbing, and that a search for the suspect was going on.

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